Grate.



No. 703,865. Patented July I, I902.

T. J. WALTON.

GBATE.

(AppIic ation filed Jan. 29, 909.)

(No Model.)

r v Zl/zfizasaas/ immficfflilzaz ouma, wnsmuowu a c UNITED STATES" PATENT OFFICE.

THOMAS J. WALTON, OF CORSICA'NAyTEXAS.

GRATE.

srEcrrrcATroN-rormi g part of Letters Patent No. 703,865, dated July 1, 1902. Application filed January 29, 1902. Serial No. 91,793. (No model.)

To all 1072,0177 it nata concern.-

Be it knownthatl; THOMAS J. NVAL ON, a citizen ofrthejUnited States,ire'siding at Gorsicana, in the county of Navarrofand State of Texas, haveinv'ented new and useful Improvements inl G'rates, of which thefollowing is a specification; V p

This invention relates t-o'gratesgand the object of the. invention is to provide a'simple and efficient deviceof this character which can be produced'ata low figure;

The grate is of invertedconical form and is supported for rotary; movement bya perpendicularspindleoifstem and is sustained inpart by a collar on said spindle or stem; Tlrefllpper end of the latter has a succession of weakened portions, so that said stem or spindle can be shortened in order to lower the grate, a

and for this purpose .the collar mentioned is vertically adjustable, it being held in a desired position by .a set-screw. The 'top or apex of the grate has a squared portion which may be embraced by a poker or like part for the purpose of oscillating the grate and which is surmounted by a shoulder which may be engaged by said poker or like part to lift the grate.

The grate and its cooperating parts may be made of any suitable material, preferably of cast-iron, andice'rtain ofthe parts may, if desired, be formed integral.

claims succeeding Isaid description, and said invention is clearly illustrated in the accom panying drawings, forming a part of this specification, and in which-;

Figure 1 is a side elevation of a grate including-my improvements Fig. 2is an under side view of the grate prop'er detached. Fig. 3 isa detail perspective view of the base and spindle- 'withthe .collar on the latter. Fig; 4:;is-a cross-section of'the crown-piece of the grate. ,Fig. 5 is a detail view-of a poker. Fig. 6 is a plan view of a modified form of base.

The invention is not limited to the construction illustrated in detail and hereinafter described, for many changes may be made within the scope of my claims, and the grate, as will be evident, may be used with facility The base-plate 10 is 4 Thegrate hereinafter described is supported for rotation and held from toppling over by the vertical spindle or stem 12, the lower'en'd'of whic'h'fits 'i'n'a central opening in the base -plate and said shaft is held against rotation by a key 13, introduced in keyways or channels formed in the respective parts.

The grate is denoted in a general way by 14, and it Will-b6 seen that it is of inverted conical form, it being of skeleton construction, as will hereinafter appear.

The body of'the grate is designated by 15, and it consists of acentral hub perforated for the reception ofthe spindle 12 and a plurality of radial arms 15, projecting from said hub. Diagonal ribs16 are connected to the outer'ends'of saidradialarms, and although the armsana ribs are 'showh as being in one piece, this is not necessary, for they could very well be'forined separately and bolted together. Tlieribs or arms 16 inclineupward and inward and are united to the crown-piece 17, and they also extend below the body 15. The ci'own-piecehas on its underside and centrally thereof a seat or socket 18, into which the uppen end-of the spindle 12 is introduced, so that the grate turns upon the spindle, and inorder to take the strain off the upper end of the spindlewhichis weakened, as will hereinafter appear, the body ofthe grate is sustained by a collar 19' on said spindle and vertically adjustable and heldjin a desired position by a set screwbarried thereby and adapted to engage .the spindle." There are four of the diagonal ribs 16, and they converge toward the top. of the grate and are embraced by rings 20, horizontally 'disposed and arranged in superposed order,t'hey-being separated a distance sufficient to permit the free passage of a draft and the discharge of the ashes, but not far enough to cause the discharge of the fresh or partly-consumed fuel.

The rings are of progressively-decreasing diameter toward the top,and their outer surfaces are rounded, which I may secure by making them circular in cross-sction, as shown, or half-circular in cross-section, or they may be of other shape, as may be desired. The rings are shown as being integral with the ribs or arms 16; but this of course is not essential, for they can be made separately and suitably connected together.

The upper end of the spindle 12 has a se ries of superposed annular grooves 21, which are of some depth, thereby producing a weakened portion the sections of which can be broken off, one or more, to adjust the grate if,

for example, the spindle is too high, and when the spindle is so shortened it will be of course necessary to correspondingly lower the collar 19. The rings 20 are of progressively-reduced sizes, so that by removing any one or more of them, commencing at the bottom and severing the corresponding portions of the ribs 16, the diameter of the grate at its base can be decreased.

The crown-piece 17 has on its top a square shoulder 22, surmounted by the squared vertical extension 23, terminating in a shoulder 24, also square. The squared extension 23 can be straddled or gripped by the forked end 25 of the poker 26 for the purpose of rotating'the grate,or by forcing the poker against the shoulder 24: the grate can be lifted. The crown -piece has exteriorly thereof several holes 27, (four being shown,) into one of which the pointed end of an ordinary poker can be inserted to lift the grate, it being understood that independent means are provided for se curing this function.

A grate constructed as hereinbefore described is economical, as by reason of its form it serves to shift and distribute the fuel from the center of fire-box to outer surface thereof, thereby securing ahigh degree of heat,

and I obtain, also, advantageous ventilation by the superposed rings. By raising the grate the contents of the fire-box canbe readily discharged into the ash-box, and by rotating the grate in one of the ways set forth it can be properly cleared of ashes. Said grate is also adjustable with respect to height and diameter and can be used effectively with difierent kinds of stoves.

In Fig. 6 I have shown a modified form of base, to which the spindle 12 is connected.

The base shown in said Fig. 6 consists of a hub or body 30, having a series of radial arms 31, four of which are shown, although this number may be varied, the arms having holes 32 at their outer ends or tips to receive bolts, by which said base can be secured to a stove. The hub of course has a central hole to receive the spindle 12, which may be keyed or otherwise held in place. Although the modified form of base is shown as consisting of one piece, this is not necessary, for it may be composed of two or more parts and may be made from any suitable material, such as iron.

Having described the invention, what I claim is- 1. A grate having a body, ribs connected to the body and converging toward the top of the grate, a crown-piece connected with the upper ends of the ribs and rings surrounding the ribs and located in superposed order and being of progressively-decreasing diameter from the bottom toward the top, combined with a spindle for rotatively supporting said grate.

2. A grate having a'body, ribs connected to the body and converging toward the top of the grate a crown-piece connected with the upper ends of the ribs and rings surrounding the ribs and located in superposed order and being of progressively-decreasing diameter from the bottom toward the top, combined with a spindle for rotatively supporting said grate, and a base-piece having a perforation to receive the spindle and the latter being keyed in place.

3. A grate having a body, ribs connected to the body and converging toward the top of the grate, a crown-piece connected with the upper ends of the ribs, rings surrounding the ribs and located in superposed order and be-- ing of progressively-decreasing diameters from the bottom toward the top, and a squared extension upon the crown-piece for receiving a poker.

4. Agrate havinga body, ribs connected to the body and converging toward the top of the grate a crown-piece connected with the upper ends of the ribs, rings surrounding the ribs and located in superposed order and being of progressively decreasing diameters from the bottom toward the top, and a squared extension upon the crown-piece for receiving a poker and its upper end being shouldered and the crown-piece having holes for the insertion of a poker.

5. A spindle having weakened portions at its upper end combined with a grate having a socket to receive said upper end, and means adjustably carried by the spindle to support the grate.

6. A base-piece having a vertical spindle provided with deep annular grooves at its upper end combined with a grate having a socket to receive said upper end, and a collar adjustable on the spindle for supporting the grate.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

THOMAS J. YVALTON.

l/Vitnesses:

O. L. J ESTER, ELMO J EFFERS. 

